观察用乳膏前后临床症状和菌斑指数、牙龈指数、龈沟出血指数的变化。
The changes of clinical sign, plaque index, gingival index and sulcus bleeding index were observed before and after using yahao.
治疗前后检查患者的牙龈指数(GI)，菌斑指数(PLI)和龈沟出血指数(SBI)。
Gingival index (gi), plaque index (PLI) and sulcus bleeding index (SBI) were measured before and after treatment.
结果实验组的菌斑指数和牙龈指数均有明显下降，治疗牙龈炎有效率较安慰剂组高。
Results The plaque index and gingival index of experiment group had decreased obviously, which effective rate in treatment of gingivitis was higher than that of placebo group.
方法对175名12～14岁儿童2年中新增龋与基线DMFS、口腔卫生行为、菌斑指数和牙菌斑中无机成分等指标进行纵向观察；
Methods Subjects were 175 of 12~14 years old schoolchildren. DMFS, plaque scores and oral health behavior were recorded in baseline, year 1 and year 2 examinations.
在基线及2、4、6、8、10、12周时由检查者单盲法评估如下指标：牙菌斑指数(PI)，探入后出血(BOP)和探入深度(PD)。
The following clinical parameters were measured at baseline, 2, 4, 6, 8, 10 and 12 weeks after treatment: plaque index (PI), bleeding on probing (BOP) and probing depth (PD).
结果四种牙膏均可使QH菌斑指数、出血指数和阿米巴感染度下降（P<0.05），而探诊深度、附着水平和牙松动度无统计学差异（P>0.05）。
Results The four toothpastes reduced the QH, SBI and AID(P<0.05), but there was no significant difference between in AL, PD and OD(P>0.05)among the groups.
结果四种牙膏均可使QH菌斑指数、出血指数和阿米巴感染度下降（P<0.05），而探诊深度、附着水平和牙松动度无统计学差异（P>0.05）。
Results The four toothpastes reduced the QH, SBI and AID(P<0.05), but there was no significant difference between in AL, PD and OD(P>0.05)among the groups.
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